app/models/location.rb

locations.rb

class Location < ActiveRecord::Base
  searchable do
    integer  :id
    spellchk :name
    latlon   :lat
    latlon   :lon
    string   :geohash
  end

  class << self
    # r = Location.by_keyword_and_radius 29.72322024726690, -95.42722710312336, 'restoran', 100
    # r.results
    def by_keyword_and_radius(lat, lon, keyword, radius)
      @search = Sunspot.search(Location) do
        adjust_solr_params do |p|
          p.delete(:fq)
          p.delete(:qf)
          p.delete(:defType)
          p.delete(:fl)
          p[:qt]          = 'geo'
          p[:spellcheck]  = 'true'
          p[:sort]        = 'geo_distance asc'
          p[:lat]         = lat
          p[:long]        = lon
          p[:radius]      = radius
          p[:q]           = keyword
        end
      end
      use_fuzzy
      @search
    end

    private
    def use_fuzzy
      @raw_results = @search.instance_variable_get(:@solr_result)
      logger.info(@raw_results.inspect)
      response    = @raw_results['response']
      fuzzy       = @raw_results['fuzzy']
      @raw_results['response'] = fuzzy if response['numFound'].zero?
    end
  end
end